Credit Suisse's talks with the Central Bank of Ireland predate the restructuring announcement, but are part of the same drive to cut costs, a source familiar with the situation said. He would not comment on how many other jobs could go to Dublin.
Credit Suisse declined to comment on the new Dublin trading floor as did the IDA, Ireland's inward investment agency. The Central Bank of Ireland would not comment on the status of Credit Suisse's licence application, which was filed more than six months ago.
Sources familiar with the situation said Credit Suisse has already begun sounding out London-based trading staff about moving to Dublin.
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They will join a trading community in Dublin that is a world apart from the Canary Wharf hub where they now sit a stone's throw from thousands of their peers. Some other international banks have small trading operations in Dublin but the only two large ones are Bank of Ireland's, which has about 175 traders, and AIB's, which has about 115.
However the Irish capital is the European headquarters for Virtu Financial and Susquehanna Investment Group, two US high-frequency traders that are among the biggest participants on global markets.
Hibernia Networks, a privately owned technology group, has also upgraded its superfast fibre optic subsea cables that connect New Jersey, Dublin and London in recent weeks, the industry's first new transatlantic system in more than a decade.